Q. As the co-signer who has made at least 80% of 2022 payments, can I claim the interest?
A. No, unless the friend was you dependent, at the time he was going to school. You can only claim student loan interest for yourself, your spouse or your dependents (or former dependents).
Q. And what if he tries to claim the interest, too?
A. That may actually be allowed, under the theory that your paying the expense is just a gift to him, and it was therefore really his money that paid it.
